• Butyl/EPDM diaphragm- 9 times better than natural rubber
• Deep-drawn steel tank
• Controls system pressure
• Air-tight cushion-factory pre-charged to 12 psig and 100% tested14.0 Gallon Expansion Tank, 1/2 in. NPT Male Connection| Overview | Honeywell Expansion Tanks are designed to absorb hot water expansion in closed heating systems. They are equipped with butyl diaphragms to separate the air from the system water (glycol). The tanks are a welded, not clamped design. Pre-pressurized at 12 psi, the tank keeps fluids circulating and maintains minimum system pressure. Honeywell tanks resist waterlogging, loss of pressure through relief valve spills, loss of BTUs and reduce circulator running time. Use the super efficient Honeywell PowerVent or air vents to remove air and micro-bubbles from the system for maximum performance. |
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| Maximum Acceptance Volume (gal) | 11.5 gal |
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| Maximum Acceptance Volume (L) | 40.1 L |
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| Connection Size (in.) | 1/2 in. |
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| Maximum Safe Operating Pressure (psi) | 100 psi |
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| Maximum Safe Operating Pressure (kPa) | 689 kPA |
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| Materials | steel shell, heavy duty butyl diaphragm |
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| Maximum Operating Temperature (F) | 240 F |
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| Maximum Operating Temperature (C) | 115 C |
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Product Family
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